Maximum volume sizes in Netware 3.12 and 4.11

I'm upgrading my server and can't seem to find what the largest volume size I can have. Right now I have 2 volumes both 2GB. I would like to make it 1 volume around the 10GB range. Is this possible or should I stick with 2 volumes at 4GB or high range?

Here is my spin on it. Both 3.12 and 4.11 are capable of handling up to 32 TB (right, terabytes) of disk. There is a limitation of 2M files per volume up to NW4.10. In NW4.11 this is expanded to 16M files per volume. I would suggest a separate volume for the system files and the user files with access to the system volume only for admin. Perhaps 1GB for system and 9GB for user files. I am running one 4.10 system with 9GB for user files and it runs fine.